Dead person pretending to be alive

This is a story of someone who died today.

Air stopped coming in. The person's chest was too tight.
But somehow, this person could still move and function like a normal person.
Limbs moving out of habit. Eyeballs swiveling within the sockets.
The external world was moving around this dead person.
Bright lights. Brick road. Bright moon.
Other human beings in sight. Carrying on their normal everyday routine.
No one noticed the difference.
Everyone else was functioning. Living.
Living? Living.
This person couldn't breathe.
There was this numbing pain in the chest.
Air couldn't come through.
Was a dead person's face different from an alive person?
No.
The dead person had no idea what to do.
Moving out of habit rather than thought.
Left, right. Look. Turn. Climb up. Go down. Left, right. See.
Somehow dead people can still feel pain?
The dead person was trying to live.
It was so painful.
One second. Another second. One more second.
Each millisecond that the dead person was functioning. It was an achievement.
Anything could happen in a millisecond.
A car accident. Food poisoning. Falling off a building. Dying.
Yup. Dying.
Dying can take a millisecond.
The dead person feels weird. This external shell was operating somehow.
But something wasn't right.
What was it like to be alive?
How does a person live?
Somehow living doesn't come with manual or guideline.
What was the reason to live again?
Was there such a thing?
Somehow this dead person can still differentiate the different types and brand of milk.
Acting alive is so easy.
Just need to move and do normal people behaviour.
Scan and pay for the milk. Then pack it and move out.
Nothing feels real though.
To that dead person, it was weird. So very weird.
Meeting other alive people. Doing alive human things. Acting alive.
There was that bright moon in the night sky again.
Eye catching.
Chest still tight though. Can't breathe.
The dead person wanted to be sealed in their own bubble of reality.
A bubble safe, hidden and protected from others.
This dead person wanted to just stay there. Looking at the moon.
Numb. Pain. Can't breathe.
Something creepier and scarier forced the dead person into motion though.
Fear.
The dead person couldn't struggle.
Whimpering and cowering in fear.
Fear drag the dead person towards pain, sadness and misery.
The dead person wanted to freeze at that spot.
The dead person was so so so scared.
The dead person wanted to live.
But it was easier to be dead than to be alive.
One step. Another step.
There was another bright light.
A scary bright light. Very very very bright light.
One step got spilt into tiny steps.
The dead person's heart was frozen.
Chest tight.
Throat blocked.
Limbs clammy.
Fear locking the dead person's arms and legs.
Freezing motion yet dragging the dead person forward.
If pretending to be alive was a feat.
Now walking towards that bright light was pushing the dead person beyond dead.
Living dead. A new category of dead.
Not plain dead. Half dead. Dying. But living dead.
Living. Dying. Every single second.
Feet scuffling now. Literally dragging towards and also further away from the light.
As the light get nearer and nearer.
The dead person was wondering,
"What was the purpose of being alive again?"